Automatic delay
开关在接通后，如有人在开关感应范围内的活动则一直接通。若人离开感应范围则按最后离开前的时间开始延时。延时时间:固定30秒
Switch connected in, if a person on the switch within the sensing activity has been switched on. If people leave the sensing range according to finally leave the time before onset of delay. Fixed delay time:30 seconds
